Furnace construction



4 July 28, 1931. .1. ANDERSON FURNACE CQNSTRUCTION Filed June: 12. 1950 2 Sheets-Sheet 1 July 28, L931. J. E. ANDERSON 1,315,391-

' 'FURNACE CONSTRUCTION Filed June 12, 1950 2 Sheets-Sheet 2 "s ot anel m 28,19 1

7 ;1,s15,sei

M Q Jorm n. ANDERSON, on onrc'nieo, mmm' 'sssmsoniogmmco JoIN'rnEs's r -m n."

. ,BRICKVCOMIBANY, 'OF CHICAGO, ILLINOIS,- A GORI PORATIONDF ILLINGIS I15,

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This inventionfrelatesto furnace linings jandmore particularly,- to corbel locki'ngtiles'; adapted'to's'ecure or anchor refractory linings V to the s tructural'w'alls o f fu'rnace' or like reconstructions; 1 j J A 3 Attempts hayefbeenf made by" fire brick ifisnarebta erste provide tile s'tor sectionally supporting refractory, linings; but i thus 1 far non 'has'been developed which alsoincor'po- 1oratesfa lockingdevice. TlheprOblem which Inanufactu'rersof plastic or fire bricklinings 'haV'e to solve is that ofpreventin gthe lining frombulging :and breaking away fron' the 'i structural supporting wall. Several factors 15 are present which cause this objectionable tendency,chie'faniong then beingthe weight of the lining and the extreme a heat and consequent expansion and contraction; 1 In some boiler installations, the refractory liningex- 20 tends-vertically'for-twenty feet or momma 1 a the weight of the .liningg with its "consequent buckling' lstr'esses, tends to force the lining i away"fromfthesupporting wall. This is es pecially true in installations where a mono- :25

contracts toagreaterextent and at adifierent rate than the supporting wall of thefurna'ce.

This res'ults in rapid: deterioration and bul'gingot the lining away from the supporting;

wallj with consequent cracking and destruc- 7 tion of the" lining,unless" 1neans is provided for supporting the'lining in such Inanner'as to hold it to the furnace wall while permitting lit to expand and contract independently of such wan. r One'of the main objects of my invention istoipro idefa novel locking' tile whereby thelining is supported and secured in such manner "as to permit independent expansion and contractionpth'ereof. -Th1S tile 7 is of such ClIlIIB IISIOIISi as tovbe .firinly em bedded in the structuralbrick wall of the fur-1 nace, and is provided with a locking elenient 7 adapted to holdamusinga ainst-movement c away froni thewall; The tiles inaybe so arranged as to support thelining in'sections heldinpl'ace by thetiles; This construction allows a lining, of relatively great yerf ti'call i height tob'e constructed whichwill nothajve filobj'ectionable b'uckling'stres's'es, the weight of lithic lining is used; The lining is subjected to'the heat of the furnace and expands and 1930, ser al 1 10. 450,599

the lining nag transferred to the structural brick wall at convenient'sectional sup orting oints-1 i; The 'lockin-gelenient of the tile'i's placed I 'as'te' anchor the lining tothe wall; the tile being so-iinbedded that nolateml inttemeni; I

l ak ng tile." p

withiny invention} I c a ,i 2

Figure 2 is a sectional: View taken substaii tiallyon'line 2 2 of rigareig: P1

Q F igure 3;is' a iew similar to Figure'nbut showing my invention as applied to a con:

7 of it'withrespect to thewall is possible. This I I efi'ectually holds Fl urelisa fragme taryinner face new. c y a I offa furnacelining; as in tinuous monolithi wall, which is sectionally;

supported by the tile of my invention Figure fits a e eem awaken-sateen t1ally'onllne44 "of Figure i Figure 5 is a perspective View oijthe hick I tube. In such constructions, the service tree.

quired'ofthe refractory lining is not as seve e;

above the tube line as below such line, and; therefore, fire bricks may be used above this Separatingthe polylithic fire brick lining 7 from the monolithic lining 8 are the corbel locking tiles 10, as shown formed'of retrac tory material; A small clearance space 10 exists between the lower surface of the tile and the upper surface of the lining due to-the1 natural contraction of the lining after it driest and hardens; "This space allows the expan-" sion ofthe liningdue to the heat within the I V c furnaceywithout imposing any stresses upon i The tube line of (Figure 1) by the slant the lining that would tend to cause buckling thereof. T

Each tile comprises a body 19 of rectangu lar shape in cross-section and a head-element projecting from one side'of'the body perpendicular thereto. Element 15. extends "over areduced portion or tongue 8a of lining 8 with surface 16 adjacent the outer face of the tongue. This provides "a, tongue and lining. Thetilesserve as a support for. the I upper fire, brick lining 7 and as an anchor groove connection between the tiles and the and lock for thelining 8. The major portion of the tile is imbedded in wall 6 and transmits the weight of the refractory brick lining to this wall. The lower lining is held in posi tion by meansof the locking element of the tile, and also by meansof a flexible anchor 11,

. of the type shown .and;described in the copending application of Ijvon S. Piete-rs, Serial $10,123,825, filed July 21,1926. This type of i anchor [consists of 'two. members, one firmly embedded in the structural wall, and having a projecting portion engaging a slotin the other member, which is embedded in thelining, in a manner which permits vertical and lateral movement; of the lining member, but

' holds it'against movement away from the 7 wall. T 1 i I cn w In constructions where the 'liningis a monolithic'lining of rather considerable he ght, as

in some boiler installations where the'lining extends-vertically for twenty feet or'more, the weight of the liningitself is liable to cause buckling, and resultant breaking away and spalling of the wall. To prevent this, 1 have'provided anovel means for both supporting the'weiglit of'the lining and also anchoring it to. the structural wall by means of my lockingtile A construction of this type is shown in Figures 3 and 4. v

. This construction. permits the wall to be separated into sections and supported at these" sectionalpoints by the 'corbel type of tile which transmits the weight of the lining to the brickv wall. 1 7

, In the drawings, 12 represents a brick wall .6. Sectionally dividing and supporting the lining is a row of corbel locking tiles 1O firmly embedded in the. wall 6. As

will be noted, the tiles'are disposed with their 7 locking elements projecting alternately up- I ea.

wardly and downwardly, so that they not only support the lining, but also serve to anchor the lining against movement away from the want. ,An'angle buckstay is shown.

at'l3, suitably secured to the wall, as by means of an angle strip'liva and tie rods 13b. ible anchors, as previously mentioned, are shown at 11. By the novel method of placing the tiles in alternating relation, itis' possible to anchor both sections of the'lining, and'also to transmit the weight of the sections thereof to the. brick wall 6'.

plastic monolithic lining set'against a structural Flex A perspective view of the tile is shown in Figure 5, and illustrates its form in detail.

The tile 10 includes amajor or bodyportion .14 which is adapted to project into andbe firmlyimbedded in the wall 6. Atthe other endofthe tile, a pro ecting portion or head 15 of thetile forms an anchoring surface '16 which is adapted to'contact with the lining and hold it against movement away from i the wall. I

Although primarily intended for anchoring refractory furnace linings, the invention is not to be limited solely to this type of anchorage, since other embodiments and adaptations might present themselves, and I intend to include all such variations, as fall vwithin the scope of the appended claims,in

this application, in which the preferred forms only of my invention are disclosed.

I-cla1m:

1. In a furnace, a retaining wall,apolylithic lining, a monolithic lining, means, for

tiles separating and supportingsaid sections and holding them against movement away from said retaining wall. I

3. In a furnace a retainingwal'l, 'm'onolithic lining sections, and tiles project-ing inwardly from the wall and having locking elementsat their inner ends, the locking elements holding the lining sections against movement away from the wall while permitting expansion and contraction of said sections independently ofthe wall. i

' 4. In a furnace, a supporting wall, a mono-- lithic lining, and rigid supporting memberssecured to the wall and supporting the lining, 'sald members having elements engaging about selected portions of, said-lining, and holding the latter against movement'- away from the wall,rthere being clearance, pro! vided betweensaid elements and the lining when said lining is cool, said clearancepenmitting expansion and contraction of the lin ingin'dependently of the wall. v

.5. In a furnace, a suppor-tlng wall,a' sectional monolithic lin ng, and securing means for engaging the respective liningsections" 'at the upper and lower edges thereof, said means holding the lining against movement away from the wall and supporting the weight of the lining sections while permit ting expansion and contraction thereofina dependently of said wall.

6. In a furnace, a supportlng wall, a plu; rallty of llnmg sections, securing means en- I was] ofrsaid sections independently of the wall,

. and cmeans anchoring. the lining sections to the wall between sa d securlng means and reventin'g movementoff the lining away Vii-omthe wall while permitting independ-- h vthe nnnrolithiclining: I I :12;Inaiurnace,asupporting wall; apo l 5 cut expansion and contraction fthere'of.

7; In a furnace, a supporting wall, a plu rality of lining'sections, securing means com-' prising rigid supporting members,said membershaving elements engaging aboutselected portions of said lining sections'and holding said sections againstmovement away from 'saidwall, said securing means supporting a the' weight. of said liningsections while peritting expansion and contraction thereof independently ofsaiclwalh c a I 1 8. In affurnace, asupporting wall, a plurality of lining sections,'securing means c'omprising rigid supporting members, said mem-r bers having elements engaging about selected portions-of said lining sections and holding said; sections against movement away from .said wall, said securing means supporting the weight of saidlining sections, there being clearance provided"for'permitting expansion and contraction of said sections independently of said wall. T

, 9.111 a-fu nace, a; supporting wall, a plurality of lining sections, securing means for" supporting said sections "and having elements for engagings'the upper and lower edgesof respective sectionsto hold said sections against movement away from' said wall,'and;means anchoring "said sections to 'thewall and disposedbetween said securing means, saidfanc'horing means preventing movement of said lining away from'said wall while permitting expansion and contraction thereof independently of said wall,

jthere being clearanceprovided between said lining sections and said securing means for permitting expansion and contraction of the' lining sections independently of the wall.

10. Ina furnace, a supporting wall, ac plu rality of lining sections, securing meansfor supporting said section'sland havingangu larly disposed elements engaging the upper and lower edges of-respective-sectionsto hold 1 sa d sections aga nst movement away from said wall, andmeans anchoring. saidsections to-the wall and disposedbetweensaid securing means, said anchoring means preventing I movement of sa1dllning away from sald wall while permitting: expansion and, con- I traction thereof independently of said wall,

there being'clearanceprovided between said liningsections and said securing means'for permitting expansion and contraction of the lining sections independentlyof'the wall.

V 11, In a furnace,asupporting wall,'apoly-' lithic lining, amonolithic lining, said polypendent-:expansion and contraction oi -said 'inoasmeisthreofswaiy from said wall, said below said ,members and permitting expanmembers having elements disposed toengage liui'ic'liningbeinguis vseaabbvssaid mbno a I lithic lining andiseparateii therefrom by rigid supporting members, said members' serving tosuppo'rt saidipolylithiclining and being provicled'with lements enga ing about se lecte'dpqrtionsof said nonolit ie lining and holdi-ngsaiii monolithic liningagainstmove merit away iromgsaid wall while permitting independent expansion and eontraetienn u as clearance prnvide'd between said members and the monolithic lining j permitting: inde 3 11 afumaceya supportingwall a p61 lithic lining, a monolithicliiriingfsaidi g-1y V lithielining being disposed; above said-mine:

lithieiinitg;rigid member i-sn-bpdrting the polyiithic lining, and-means aneirorin gisaid monolithiclining to the wall and ais osed' below said members and permitting expan i s ien andrcontraeticnbfthsinonelithielining independently' of the wall whiiefpmventing members having elements disposed to engage about selected portions of said monolithic lining to hold said lining against movement away from said wall while permitting independent expansion and contraction thereof.

14; In a furnace, asupporting wall, a polylithic lining, a monolithic lining,-said polylithic lining being disposed above said mono- I I lithic lining,rigid members supporting the polylithic lining, and means anchoring said 1 monolithic liningto the wall and disposed sion and contraction of the monolithic lining independently of the wall while preventing movement thereof away from said wall,said

about selected portions of said monolithic lining to hold said lining against movement away from said Wall, there being clearance i provided between said members and the monolithic lining permitting, independent vvertical expansion and contraction thereof.

15. In a furnace construction, a retaining wall, a refractory lining at the inner face of the wall, and rigid supporting members secured to the wall and projecting inwardly therefrom, said membershaving elements engaging over selected portions of the lining and holding it against movement away from the wall, there being clearance between certain of the supporting members and the lininc i f s a Ho f " ing-and suchclarfance permitting expansion and contractionof the lining independently V fi eWall.v v r 16. Ina furnace construction, a retaining wallyasectional-e refractorylining at the inner face of the Wall, and rigidsupporting members securedtothe wall and extending betWeenthe upper-and lower-.edgessor'the clearance betweenthe upper edges of there lining sections, saidv members having ele- In'ents engaging over theedgeportions of the lining sections and holding them against movement away from the Wall, there being sp'ective lining sectionszand the associated supporting members for, permltting' expansion and contraction of the lining sections independently of thewall."

17; Ina furnaceconstruction,.aretaining Wall, :a sectional refractory lining at the inner face of the Wall, and rigid supporting members secured to the wall and extending between the upperand lower edges of the lining sections, said melnbers havingtongue and groove connections With the lining sections 'andholding them against movement away 7 from thewall, there being clearance between,

' certain of 'the supporting members and the associated edges ofthe respective lining sections for, permitting expansion and contrac: tion ofthe lining sections independently of the Wall, 

